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A white clayey mineral
Answer for the clue "A white clayey mineral ", 9 letters:
sepiolite
Word definitions for sepiolite in dictionaries
Wiktionary
Word definitions in Wiktionary
n. (context mineralogy English) A hydrated magnesium silicate, claylike mineral used for carving into decorative articles and smoking pipes
Wikipedia
Word definitions in Wikipedia
Sepiolite , also known as meerschaum ( or , German for foam of the sea ) is a soft white clay mineral , often used to make tobacco pipes (known as meerschaum pipes ). A complex magnesium silicate , a typical chemical formula for which is MgSiO(OH)ยท6HO, ...
The Collaborative International Dictionary
Word definitions in The Collaborative International Dictionary
Meerschaum \Meer"schaum\ (m[=e]r"sh[add]m; 277), n. [G., lit., sea foam; meer sea + schaum foam; but it perh. is a corruption of the Tartaric name myrsen. Cf. Mere a lake, and Scum .] (Min.) A fine white claylike mineral, soft, and light enough when in ...
WordNet
Word definitions in WordNet
n. a white clayey mineral [syn: meerschaum ]